Services in the nature of chopping, cutting, shearing, polishing and grinding of hoses and tubes and of their parts and accessories; metal and plastic coating of hoses and tubes and their parts and accessories

pipes, and couplings and fittings therefor, all made of ferrous metal; manually operated metal valves; metal hardware; namely, condensate traps

pipes, and couplings and fittings therefor, all made of ferrous metal; manually operated metal valves; metal hardware; namely, condensate traps